Metal-planer



'Ts sTATns PATENT oruicn. j

E. C. CLEVELAND, 0F WORCESTER, MASSACHUSETTS.

METAL-PLANER.

Specification 'of Letters Patent No. 15,413, dated July 29, 1856.

To all whom 'it may concern:

Be it known that I, E. C. CLEVELAND, of Worcester, in the county ofWorcester and State ofMassachusetts, have invented a new and ImprovedFeeding Device to be Applied to Metal-Planers; and I do hereby declarethat the following is a full, clear, and exact description of the same,reference being had to the annexed drawings, making a part of thisspecification, in which- Figure 1, is a side view of a planer with myimprovement attached to it. Fig. 2, is a detached view of the frictionbox bisected through its center.

Similar letters of reference indicate corresponding parts in the twofigures.

My invention consists in the employment or use of a friction boxconnected by gearing with the screw which operates the tool stock. Thefriction block being provided with adjustable dogs; the above parts.being arranged as will be hereinafter described; whereby the tool maybe adjusted or fed at varying distances, as desired, at each stroke ofthe bed according to the nature of the work.

To enable others skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A, represents the framing of an ordinary power planer; and B, representsthe cross bar which contains the screw, C, that passes through the nutof the stock, D, to which the tool is attached; the stock, D, beingallowed to slide upon the bar, B, in the usual manner. On one end of thescrew, C, there is placed loosely a pinion, E, having a pawl, (a), onits inner side, which pawl catches into a pinion, (b), attachedpermanently to the screw, C. (See dotted lines,`Fig. 1.) The pinion E,gears into a pinion, F, which is placed on one end of a shaft, (0),'said shaft being fitted in a bearing attached to the bar, B. On theopposite kend of the shaft, (c), a bevel pinion, (d), is placed, whichpinion gears into a bevel pinion, (c), placed loosely on a verticalshaft, H, at the side of the framing, A. To the lower end of the shaft,H, a bevel pinion, (f), is attached; and the lower bearing, (g), of theshaft, H, has a projecting arm or stop, (h), attached to it.

I, represents a cross shaft at the lower part of the framing, A. Thiscross shaft has a circular disk, formed on its end; and a box, J, isplaced over the disk,

said box extending a short distance around the shaft, I, and having abevel wheel, upon it, which wheel gears into the pinion, f. To the outerside of the box, J, a circular plate, (7c), is attached by screws, (l)and washers, (m), constructed of raw hide or other proper material, isplaced between the disk, (i), and plate, (lo). (See Fig. 2.) The box, J,is of, circular form, and a T- shaped groove, (n), is made in itsperiphery, in which groove, dogs, (0), (o), are fitted and securedtherein by screw bolts, These dogs project a suitable distance beyondthe periphery of the box, J, so that they may strike against the arm orstop, (la), which projects over the box, J, as shown clearly in Fig. 2.

The dogs, (o), (o), are adjusted upon the box, J, in such positions thatthey will strike against the arm, (71,), and prevent the box, J, fromturning when the plate or article to be planed passes underneath thecutter which is attached to the stock, D. When either of the dogs, (o),are in contact with the arm, (it), the shaft, I, rotates, while the box,J, is stationary; the plate, (7c), being screwed up against the washers,(m), sufficiently tight to c ause the box to rotate with the shaft, I,when the box is not arrested by the arm, (jh), and at the saine time theplate,

(7c) is not screwed up so tight as to prevent shaft, I, rotatingindependently of the box when its motion is arrested in consequence ofthe dogs striking against the arm,

From the above description it will be seen that by properly adjustingthe dogs, (o), upon the box, J, the tool stock, D, may be movedlaterally when the plate to be planed has passed underneath the cutteror tool, so that said tool may be adjusted for each cut; the box, J,rotating with the shaft, I, and operating the tool stock till one of thestocks comes in contact with the arm L, the lateral movement of the toolbeing stopped at this point and the tool acting upon the work. The shaftI and the box J, rotate in a reverse direction, as the work or plate tobe planed moves backward and the tool is not moved laterally when thework is thus moving, as the pawl a, slips over the teeth of the pinionBy properly adjusting the dogs, o, o, the tool may be moved laterally agreater or less distance at each stroke or vibration of the bed and thework which isplaced uponA the shaft H, and is fitted or Works in a shaftH, by the gearing j, f, and operating l0 groove therein, the bar B, andtool may be conjointly with the gearing E, F, and raised or lowered tosuit the Work. pavvl a, on the shafts C, o, H, and the arm Having thusdescribed my invention, what L, which projects over the bOX J, as shown,5 I claim as nevv and desire to secure by Letfor the purpose specified.

ters Patent, is- E. C. CLEVELAND.

The friction boX J, attached to the shaft I, Witnesses: as shown, andprovided with adjustable dogs W. W. RICE,

0, o, the boX J being connected With the CHAs. C. COLEMAN.

